Telephonic



(No Modl.) 2 Sheets-Sheet 1. J. F. MGLAUGHLIN.

TBLEPHONIG APPLIANGE.

No. 328,702; Patented Oct. 20, 1885.

WJTNESSES; IN1/NMR (No Model.) 2 Sheets-Sheet 2. J. F. MGLAUGHLIN.

TBLBPHONIG APPLIANGB. No. 328,702. Patented Oct. 20, 1885.

WTNESSES: INVENTOR/ ff ffy/n ATTORNEY N. Prrzns mammography. wuningm. uc.

tirarmi STATI-s arnNT Ofi-Fica JAMES F. MGLAUGHLN, OF PHILADELPHIA, PENNSYLVANIA.

TELEPHONIC APPLIANCE.

SPECIFICATION forming part of Letters Patent No. 328,702, dated October 20, 1885.

Application tiled September, 18S-l. Serial No. 142,185. (No model.)

To @ZZ whom, it may concern:

Be it known that l, J Anus F. HOLAUGHLIN, a citizen of the United States, residing at Philadelphia. in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Telephonie Appliances, of which the following is a specification, reference being had therein t0 the accompanying drawings, wherein- Figure l is an elevation, partly sectional, of electric telephonie appliances embodying my invention. Figs. 2 and 3 are diagrams ot' same, illustrating the current or circuit connections, the former showing the bell in circuit with the line-wire and the telephone and transmitter cut out of same, and the latter showing the bell cut out of and the telephone and transmitter switched into the line-circu t; Figs. 4 and 5 are respectively an elevation and plan ot my improved telephonie or electric switch in position for placing the bell in the line-circuit and for cutting out of the same the telephone and transmitter, and Figs. (5 and 7 are like views of the switch in position for cutting the bell out of and placing the telephone and transmitter in the line-circuit.

My invention has relation to electric teleponic appliances of that form which have a permanent magnet common to the telephone and the call-bell, and has for its object simplicity of construction and the provision of a reciprocating or sliding switch for changing the circuits of the call-bell and telephonie appliances.

My invention accordingly consists of the combination, construction, and arrangement of parts, as hereinafter described and claimed.

ln the drawings, A represents a box of any desired form and configuration, to which is suitably secured, as desired, an electric call or bell, B, a magneto-electric machine, C, a transmitter, D, a telephone, E, and aswitch, F.

The call-bell, magneto-electric machine, and the transmitter may be of any suitable or desired construction, and be disposed of or located as circumstances dictate.

One of the poles c ot' the field-magnets c of the generator C is prolonged or provided with an extension, as shown at c2. This extension o2 may be an integral part of the pole or separate from and secured to it in any suitable manner. The pole-extension c2 preferably passes out through an opening in one of the sides c of box A, as shown, is provided with a helix, c, and surrounded by a casing, e, having a diaphragm, e2, to provide an electric telephone, E, which is stationary or tirlnly secured to box A. To the casing or removable cover e3 ofthe telephone is secured a depending flexible aural tube, G, having a lnouthpiece, g.

Such construction provides, first, a magneto-electric machine, one of the poles of which serves as a core-piece or magnet for the helix e of the telephone, and, second, a combined magneto-electric generator and telephone having an aural tube for confining and directing the reproduced sounds to the ear.

From the foregoing it is evident that whenever a call is made or the armature c of the generator C is rotated, the magnetism ot' the core-piece ofthe telephone is strengthened, or that the telephone is provided with means for duly and automatically maintaining its efficiency or always cause it to perform its functions in a clear and distinct manner.

lt' from continued disuse the telephone is weak or reproduces indistinctly,the subscriber can instantly and at any time increase its efficiency by a continued or prolonged rotation of the generator-armature c3.

A telephone so constructed is not subject to periodical repairing or replacing of worn-out magnets or core-pieces by new ones. Consequently, it is more durable, and the cost 0f 85 maintenance of service is considerably reduced.

y lf desired, both poles c of field-magnets c may be prolonged and duplicate telephones E mounted thereon and placed in suitable electric circuit. Such prolongation of both poles of magnets c is indicated in Fig. 1 by dotted lines x.

The switch F consists of a rod, f, sliding in a sleeve or tubular bracket, j, and has at its outer end two spring-arms, f2, and at or near its inner end a series of radial studs, f3, f4, and f5. The studs f4 and f5 are diametrically arranged, as shown. The stud f3 is inline with a spring-finger, H, bent upon itself ath and having a turned-up end, h. This finger H is in circuit with the electric bell or call B, by way of wire T. (See Figs. 2 and 3.) In contact with bar or rod f is a iinger, I, having a IGC a ground -wire, 2, so that when finger H is in contact with studs f the bcllis in circuit with the line-wire y, or it is grounded by way of finger H, studfi, barf, and :finger I, (see Figs. 2 and 4,) and the telephone and transmitter are cut out of the line-circuit.

rlhe studs f4 and f5 are in line with a pair of spring-fingers, K and K, bent upon themselves at 7c and having turned-up end 7c. When these fingers .are in contact with the studsf4 andf, as shown in Figs. 3 and 7, the

' bell is cut out of the line-wire y and the telecauses the stud f3 to contact with yfingers H,

and the studs]c4 and f5 to pass out of contact with iingers K and K', as shown, the finger I being always in contact with barf, as shown. The bell is then switched into the line y and the telephone and transmitter cut out of same. When, however, the tube G is taken out of the switch-armsfz, the barfis moved in a contrary direction, or in that indicated by arrow 2, Figs. 6 and 7, and such movement of bar f causes the stud]v3 to pass off the finger H and the studs f4 and f5 to contact with the fingers K and K, to cut out the bell and to switch the telephone and transmitter into the line-circuit y.

I do not wish to be understood as confining myself to the particular arrangement of-circuits shown, as it is evident that they may be variously modified or changed, as desired, without departing from the spirit of my invention. So, too, it is also evident that instead of putting the. studs f3, fi, and f5 on the switch-barf, they may be secured to the box A, in which case the ngers H and K K will be attached to and move with the bar j'.

What I claim is- 1. In a telephone appliance, the combina- 5o tion of call-bell, generator field-magnet C, having pole-piece extension c2, provided with a helix, e, a diaphragm, e2, mouth-piece E, having flexible tube G, and sliding switch F, arranged for operation, substantially as shown and described. f Y

2. The combination,with call-bellBand telephone E, of a switch, F, comprising a sliding bar,f, studsfs, f4, andf, and fingers H, K, K', and I, substantially as shown and described. 6o

3. The combination, with a call-bell, B, telephone E, having aural tube G, and transmitter D, of a switch, F, comprising a sliding bar, j", with hook or spring arms f2, and contact-studs Vand fingers, substantially as shown and described.

4. 'Ihe switch F, comprising a sliding bar, f, having studsfafif, and fingers H, K, K', and I, constructed and arranged to operate substantially as shown and described.

l In testimony whereof I aflix my signature in presence of two witnesses.

JAMES F. MOLAUGHLIN.

Witnesses:

JOHN RoDGERs, S. J. VAN S'rAvoRnN. 

